#!/usr/bin/env python3
# -*- encoding: utf-8 -*-

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'''none grouping topology'''

from heronpy.api.stream import Grouping

from integration_test.src.python.integration_test.core import TestTopologyBuilder
from integration_test.src.python.integration_test.common.bolt import IdentityBolt
from integration_test.src.python.integration_test.common.spout import ABSpout

def none_grouping_builder(topology_name, http_server_url):
  """Integration test topology builder for none grouping"""
  builder = TestTopologyBuilder(topology_name, http_server_url)
  ab_spout = builder.add_spout("ab-spout", ABSpout, 1)

  builder.add_bolt("identity-bolt", IdentityBolt,
                   inputs={ab_spout: Grouping.NONE},
                   par=3,
                   optional_outputs=['word'])

  return builder.create_topology()
